miller



(No Model.) 3 Sheets-Sheet 1.

- J,- H. MILLER. W NDM LL RA Paj tentea Dec. 25 1894.

we Model.) 3 Shet-Sheet 2.

'J. H. MILLER. WINDMILL BRAKE. No. 531,420. Patented Dec. 25, 1894.

(No Model.) 3 Sheet-Sheetfi. a

J. .H. MILLER- WINDMILL BRAKE.

Patented Dec. 25, 1894.

NITED STATES PATENT Piston.

JOHN H. MILLER, OF BATAVIA, ILLINOIS, ASSIGN OR TO THE UNITED STATES WIND ENGINE AND PUMP COMPANY, OF SAME PLACE.

WlNDMlLL-BRAKE.

SPECIFICATION forming part of Letters Patent No. 531,420, dated December 25, 1894. Application filed September 19 1894;. Serial No. 523,490. (No model.)

To all whom it may concern.-

Be it known that I, JOHN H..MILLER, a citizen of the United States, residing at Batavia, in the county of Kane and State of Illinois, have invented a certain new and useful Improvement in Windmill-Brakes,which is fully set forth in the following specification, reference being had to the accompanying drawings, in which- Figure 1 is a side elevation of my invention showing the parts of a windmill to which it is applied. Fig. 2 is a top or plan view of the same. Fig. 3 is a vertical sectional View, taken at the line 3-3, Fig. 1, looking to the right. Fig. 4 is a side elevation of a detached portion of the part of a windmill which carries the brake. Fig. 5 is a vertical section, taken at the line 5-5, Fig. 4, looking to the right. Fig. 6 is a side elevation of the brake;

and Fig. 7 is a vertical section, taken at the line 7-7, Fig. 6. r v

The object of my invention is tomake an efficient brake for a solid wheel windmill in which the brake will be applied when the wheel is pulled around out of wind.

When the tank is full of water, or when it is not desired to have the Water stand in the pump where it is liable to freeze in cold weather, the millis ordinarily swung around and fastened out of wind. It is important at such times that the wheel be prevented from turning so thatthe wear of the mill will cease and that the water will be allowed to run out of the pump.

Myinvention consists in the parts and combination of parts hereinafter fully described and made the subject matter of the claims.

In the accompanying drawings, A represents the windmill tower; B, the cap of the tower, securelyboltedthereto, and C the turntable.

D, is the spider of the wind wheel. E, is the wind wheel shaft to which said spider is securely attached in the ordinary manner. I

F, is an annular rim cast with, or securely attached to, the spider D against which the brake-shoe has a frictional contact to prevent the wheel from revolving.

The brake shoe G is cast with arms, H, in which are grooves, I, that rest on inclined lugs, J, one on each slide of that portion of the turn-table, K, which supports the shaft E of the wind wheel. The shoe is of circular form and'passes under the wind wheel shaft, and p when applied. it slides up on the inclined faces 5 5 of the lugs J till it contacts with the face of the annular rim F on thespider of the wind wheel.

When the force which applies the brake is removed, the weight of the brake causes it to slide downwardly on the inclined faces of the lugs which support it, and the brake is removed from its contact with the annular rim F. The brake has an arm, L, to which the lever, M, is pivoted and by which the brake is applied as above described. The lever M is pivoted to the turn-table or an attachment to the turn-table, N, at O, as clearly shown in Fig. 1 of the drawings. The long arm of the lever projects toward the center of the turntable, and the rod, P, by which the Wind wheel is pulled out of wind, passes through the long end of the lever M, as clearly shown in Figs.

1 and 3. I place also on the rod P an adjustpass wheel is completely turned out of wind, the

block strikes the brake-lever and applies the i brake, thus stopping the revolution of the wheel whenthe wheel is fastened out of wind. The rod P is pivotally attached to one end of the lever, S, which has its bearing on the top of the windmill, as clearly shown in Fig. 1. There is also attached to this lever, a rod, T, which connects with and operates a weighted lever, U. When the rod P is pulled down and thereby vibrating the lever S on its bear- 9o ings, the rod 1 raises the long end of the weighted leverU which is pivoted to the turntable and. connected with the tail-vane by a link connection at V in such manner as to turn the turn-table and swing the wind wheel 5 around out of wind.

I do not claim in this application any novelty in the construction or arrangement of the weighted lever or its connection with the turn-table and tail-vane for swinging the I00 wind wheel out of wind, or for bringing it back into wind when desired. Neither do I claim to be the first to apply a brake to the spider of the wind wheel, but

What I do claim, and desire to secure by Letters Patent, is- 1. In a windmill, a brake having bearings adapted to rest upon lugs or flanges supported on the turn-table; flanges or lugs supported on the turn-table on which the brake has its bearings; a lever pivotally attached to said brake, pivoted on the turn-table and adapted to be connected with the rod by which the wind wheel is thrown out of wind; and africtional bea'rin g surface connected rigidlyto the wind Wheel shaft whereby the brake is operated by the rod, and sliding on the lugs or flanges makes a frictional contact with the attachment of the wind wheel shaft, as specified.

2. The rod with which the wind wheel is thrown out of wind; at stop on the rod adapted to operate the brake-lever; a brake-lever pivoted to the turn-table and connected with the rod and with the brake-shoe; a brake-shoe 

